package com.example.forum2.interceptor;

import com.example.forum2.config.AppConfig;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * @Author 旭旭的论坛系统
 */

@Component
public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        HttpSession session = request.getSession(false);
        if(session!=null && session.getAttribute(AppConfig.USER_SESSION)!=null ){
            return true;
        }
        response.sendRedirect("/sign-in.html");
        return false;
    }
}
